Difference between revisions of "PhET/C2/Build-an-Atom/English-timed"

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|-
 
|-
 
|00:36
 
|00:36
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|  Using this simulation, students will be able to-
+
|  Using this simulation, students will be able to:
−
build an atom using protons, neutrons and electrons.
+
build an atom using protons, neutrons and electrons,
  
 
|-
 
|-
 
|00:46
 
|00:46
−
| Identify an element and its position on the periodic table.
+
| identify an element and its position on the periodic table,
  
 
|-
 
|-
 
|00:52
 
|00:52
−
| Determine whether an atom is neutral or an ion. Predict the charge.  
+
| determine whether an atom is neutral or an ion, predict the charge,  
  
 
|-
 
|-
 
|01:00
 
|01:00
−
|Determine the mass of an atom or ion. Determine the stability of atom or ion created.
+
|determine the mass of an atom or ion, determine the stability of atom or ion created,
  
 
|-
 
|-
 
|01:10
 
|01:10
−
|Represent the atomic symbols.Create Isotopes of an element.
+
|represent the atomic symbols, create isotopes of an element.
  
 
|-
 
|-
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|-
 
|-
 
|01:57
 
|01:57
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|  Use the given link to download the simulation. [http://phet.colorado.edu/ http://phet.colorado.edu]
+
|  Use the given link to download the simulation.  
 +
[http://phet.colorado.edu/ http://phet.colorado.edu]
  
 
|-
 
|-
 
|02:01
 
|02:01
−
| I have already downloaded, '''Build an Atom''' simulation to my '''Downloads''' folder.
+
| I have already downloaded '''Build an Atom''' simulation to my '''Downloads''' folder.
  
 
|-
 
|-
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|-
 
|-
 
|02:21
 
|02:21
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| This is the Interface of '''Build-an-Atom''' simulation.
+
| This is the interface of '''Build-an-Atom''' simulation.
  
 
|-
 
|-
 
|02:26
 
|02:26
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| The interface has 3 screens,
+
| The interface has 3 screens-
  
−
'''Atom''',
+
'''Atom''', '''Symbol''' and  '''Game'''.
−
 
+
−
'''Symbol''' and  '''Game'''.
+
  
 
|-
 
|-
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|-
 
|-
 
|02:40
 
|02:40
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|Using this screen students can- build atoms, determine the identity, net-charge and mass of an atom.
+
|Using this screen, students can- build atoms, determine the identity, net-charge and mass of an atom.
  
 
|-
 
|-
 
|02:51
 
|02:51
−
|'''Atom''' screen shows a '''Bohr's''' model of an atom.
+
|'''Atom''' screen shows a Bohr's model of an atom.
  
 
|-
 
|-
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|-
 
|-
 
|03:01
 
|03:01
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|At the bottom of the screen there are 3 containers with, '''Protons''''''Neutrons''' and '''Electrons'''.
+
|At the bottom of the screen, there are 3 containers with '''Protons''',  '''Neutrons''' and '''Electrons'''.
  
 
|-
 
|-
 
|03:09
 
|03:09
−
| On the right-side, there are 3 panels, '''Element''', '''Net charge''' and '''Mass Number'''.
+
| On the right-side, there are 3 panels- '''Element''', '''Net charge''' and '''Mass Number'''.
  
 
|-
 
|-
 
|03:18
 
|03:18
−
|To open the panel, Click on the green plus sign located on top-right corner on each panel.
+
|To open the panel, click on the green plus sign located on top-right corner on each panel.
  
 
|-
 
|-
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|-
 
|-
 
|03:47
 
|03:47
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|It shows- The number of '''Protons''', '''Neutrons''' and '''Electrons''' we have used to create the atom.
+
|It shows the number of '''Protons''', '''Neutrons''' and '''Electrons''', we have used to create the atom.
 
|-
 
|-
 
|03:56
 
|03:56
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|-
 
|-
 
|04:16
 
|04:16
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| Hydrogen atom is the simplest of all elements.It has one electron in the first orbit and one proton in the nucleus.  
+
| Hydrogen atom is the simplest of all elements. It has one electron in the first orbit and one proton in the nucleus.  
  
 
|-
 
|-
 
|04:27
 
|04:27
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| Drag an '''Electron''' and place in the 1 orbit. By default the orbits are shown as circular dashed lines.
+
| Drag an '''Electron''' and place in the first orbit. By default, the orbits are shown as circular dashed lines.
  
 
|-
 
|-
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|-
 
|-
 
|04:49
 
|04:49
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| Observe all the panels on the screen.
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| Observe all the '''panel'''s on the '''screen'''.
  
 
|-
 
|-
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|-
 
|-
 
|04:57
 
|04:57
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|'''Net charge''' is zero and is labeled as neutral atom.'''Mass number''' is one.
+
|'''Net charge''' is zero and is labeled as neutral atom. '''Mass number''' is one.
  
 
|-
 
|-
 
|05:06
 
|05:06
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|It also shows that, the atom is '''Stable'''.
+
|It also shows that the atom is '''Stable'''.
  
 
|-
 
|-
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|-
 
|-
 
|05:18
 
|05:18
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|Add one more '''Electron''' in the 1st orbit.Now it is a '''Neutral''' atom, but the atom is still labeled as '''Unstable'''.
+
|Add one more '''Electron''' in the 1st orbit. Now it is a '''Neutral''' atom but the atom is still labeled as '''Unstable'''.
  
 
|-
 
|-
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|-
 
|-
 
|05:34
 
|05:34
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|The '''Mass Number''' shows 3, but we know that atomic mass of helium is 4.  So add another '''Neutron''' to the nucleus.  
+
|The '''Mass Number''' shows 3, but we know that atomic mass of helium is 4.  So, add another '''Neutron''' to the nucleus.  
  
 
|-
 
|-
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|-
 
|-
 
|05:55
 
|05:55
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| We can add '''Neutrons''' to the nucleus to create isotopes of the same element.
+
| We can add '''Neutrons''' to the nucleus, to create isotopes of the same element.
  
 
|-
 
|-
 
|06:01
 
|06:01
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|Atoms of the same element that differ in neutrons are called Isotopes.  
+
|Atoms of the same element that differ in neutrons are called isotopes.  
  
 
|-
 
|-
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|-
 
|-
 
|06:12
 
|06:12
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| Remove one '''Proton''', one '''Electron''' and 2 '''Neutrons''' from the '''Helium''' atom. Now we have hydrogen atom also called '''Protium'''.
+
| Remove one '''Proton''', one '''Electron''' and 2 '''Neutrons''' from the '''Helium''' atom. Now we have hydrogen atom, also called '''Protium'''.
  
 
|-
 
|-
 
|06:25
 
|06:25
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| Let us create '''Isotopes''' of '''Hydrogen'''.
+
| Let us create '''isotopes''' of '''Hydrogen'''.
  
 
|-
 
|-
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|-
 
|-
 
|06:55
 
|06:55
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|It is '''Stable'''. Add another '''Neutron''' to the nucleus to create '''tritium'''.'''Tritium''' is unstable, as shown here.
+
|It is '''Stable'''. Add another '''Neutron''' to the nucleus to create '''tritium'''. '''Tritium''' is unstable, as shown here.
  
 
|-
 
|-
 
|07:06
 
|07:06
−
| As an assignment,
+
| As an assignment:
−
 
+
create a neutral carbon atom. Show isotopes of carbon.  
−
Create a neutral carbon atom. Show isotopes of carbon.  
+
  
 
|-
 
|-
 
|07:14
 
|07:14
−
|Click on reset button at the bottom-right corner. This will reset the screen to default settings.  
+
|Click on '''reset''' button at the bottom-right corner. This will reset the screen to default settings.  
  
 
|-
 
|-
 
|07:24
 
|07:24
−
| Next click on '''Symbol''' screen at the bottom of the interface. Using this screen, students can interpret atomic symbols.  
+
| Next, click on '''Symbol''' screen at the bottom of the interface. Using this screen, students can interpret atomic symbols.  
  
 
|-
 
|-
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|-
 
|-
 
|07:52
 
|07:52
−
|The subscript number is called the atomic number.The superscript number is called the mass number.
+
|The subscript number is called the atomic number. The superscript number is called the '''mass number'''.
 
Charge on the atom is shown on the top-right corner.  
 
Charge on the atom is shown on the top-right corner.  
  
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|-
 
|-
 
|09:17
 
|09:17
−
| In this tutorial we have learnt,
+
| In this tutorial, we have learnt:
−
How to use '''Build an Atom''', Interactive PhET simulation.
+
how to use '''Build an Atom''', interactive PhET simulation.
  
 
|-
 
|-
 
|09:24
 
|09:24
−
| Using this simulation we have learnt to -
+
| Using this simulation, we have learnt to -
  
−
Build models of Hydrogen and Helium atoms.
+
build models of Hydrogen and Helium atoms,
  
−
Add or remove electrons to create ions.
+
add or remove electrons to create ions,
  
−
Add or remove neutrons to create isotopes.
+
add or remove neutrons to create isotopes.
  
 
|-
 
|-
 
|09:38
 
|09:38
−
| As an assignment,
+
| As an assignment:
−
Create a neutral oxygen atom.
+
create a neutral oxygen atom.
  
 
|-
 
|-
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|-
 
|-
 
|09:56
 
|09:56
−
| The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.
+
| The video at the following link summarizes the '''Spoken Tutorial''' project. Please download and watch it.
  
 
|-
 
|-
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|-
 
|-
 
|10:41
 
|10:41
−
| This tutorial is contributed by Snehalatha kaliappan and Meenal Ghoderao from IIT Bombay. Thank you for joining.  
+
| This tutorial is contributed by Snehalatha kaliappan and Meenal Ghoderao, from IIT Bombay. Thank you for joining.  
 
|-
 
|-
 
|}
 
|}

Revision as of 14:33, 4 August 2018

Time Narration
00:01 Welcome to this tutorial on 'Build an Atom' simulation.
00:06 In this tutorial, we will

demonstrate Build an Atom, Interactive PhET simulation.

00:13 To follow this tutorial, learners should be familiar with topics in high school science.
00:20 Here I am using-

Ubuntu Linux OS version 14.04

Java version 1.7.0

Firefox Web Browser Version 53.02.2.

00:36 Using this simulation, students will be able to:

build an atom using protons, neutrons and electrons,

00:46 identify an element and its position on the periodic table,
00:52 determine whether an atom is neutral or an ion, predict the charge,
01:00 determine the mass of an atom or ion, determine the stability of atom or ion created,
01:10 represent the atomic symbols, create isotopes of an element.
01:17 Atoms are fundamental building blocks of matter.
01:21 Each atom consists of a small, dense, positively-charged nucleus.
01:27 Nucleus is surrounded by much lighter, negatively-charged electrons.
01:33 Nucleus may also contain neutrons. Neutron has same mass as proton but it has no charge.
01:42 Number of protons in the nucleus of an atom defines the chemical element.
01:48 Chemical properties of an element arise due to number & arrangement of electrons.
01:55 Let us get started.
01:57 Use the given link to download the simulation.

http://phet.colorado.edu

02:01 I have already downloaded Build an Atom simulation to my Downloads folder.
02:07 To open the simulation, right click on build-an-atom_en.html file.
02:13 Select Open With Firefox Web Browser option. File opens in the browser.
02:21 This is the interface of Build-an-Atom simulation.
02:26 The interface has 3 screens-

Atom, Symbol and Game.

02:33 Let us begin our simulation with Atom screen.
02:37 Click on Atom screen.
02:40 Using this screen, students can- build atoms, determine the identity, net-charge and mass of an atom.
02:51 Atom screen shows a Bohr's model of an atom.
02:56 It shows position of nucleus and 2 orbits.
03:01 At the bottom of the screen, there are 3 containers with Protons, Neutrons and Electrons.
03:09 On the right-side, there are 3 panels- Element, Net charge and Mass Number.
03:18 To open the panel, click on the green plus sign located on top-right corner on each panel.
03:26 This allows you to view the changes as you change the number of particles.
03:33 At the bottom of the screen, you will see Show box. In the box, click on Stable/Unstable check box.
03:42 The top left corner of the screen shows a box.
03:47 It shows the number of Protons, Neutrons and Electrons, we have used to create the atom.
03:56 Let us start by building Hydrogen atom. From the Proton container, click on the Proton.
04:04 Drag and drop on the X mark, which represents the nucleus of an atom.
04:10 Simultaneously observe the changes in each of the panels.
04:16 Hydrogen atom is the simplest of all elements. It has one electron in the first orbit and one proton in the nucleus.
04:27 Drag an Electron and place in the first orbit. By default, the orbits are shown as circular dashed lines.
04:36 Under Model heading, click on Cloud radio button. This will show the orbit as electron cloud.
04:44 Click on Orbits radio button to show the default orbits.
04:49 Observe all the panels on the screen.
04:53 Element box shows Hydrogen as Element.
04:57 Net charge is zero and is labeled as neutral atom. Mass number is one.
05:06 It also shows that the atom is Stable.
05:10 Now add one more Proton to the nucleus. The atom is shown as Unstable Helium Ion.
05:18 Add one more Electron in the 1st orbit. Now it is a Neutral atom but the atom is still labeled as Unstable.
05:28 Add a Neutron to the nucleus. The atom is now Stable.
05:34 The Mass Number shows 3, but we know that atomic mass of helium is 4. So, add another Neutron to the nucleus.
05:44 This completes the atomic structure of Helium atom.
05:49 Helium atom has 2 Protons, 2 Neutrons and 2 Electrons.
05:55 We can add Neutrons to the nucleus, to create isotopes of the same element.
06:01 Atoms of the same element that differ in neutrons are called isotopes.
06:07 Isotopes of same element have same chemical properties.
06:12 Remove one Proton, one Electron and 2 Neutrons from the Helium atom. Now we have hydrogen atom, also called Protium.
06:25 Let us create isotopes of Hydrogen.
06:29 Hydrogen has three isotopes. Protium, Deuterium and Tritium.
06:36 Nucleus of Protium contains only one Proton.
06:39 Deuterium has one Proton and one Neutron. Tritium has one Proton and 2 Neutrons.
06:48 Add one Neutron to the nucleus. Deuterium atom is created.
06:55 It is Stable. Add another Neutron to the nucleus to create tritium. Tritium is unstable, as shown here.
07:06 As an assignment:

create a neutral carbon atom. Show isotopes of carbon.

07:14 Click on reset button at the bottom-right corner. This will reset the screen to default settings.
07:24 Next, click on Symbol screen at the bottom of the interface. Using this screen, students can interpret atomic symbols.
07:34 Notice that a Symbol panel is added on the screen.
07:39 Atom of every element is represented by a symbol. It gives information about atomic number, mass number and charge.
07:52 The subscript number is called the atomic number. The superscript number is called the mass number.

Charge on the atom is shown on the top-right corner.

08:06 The number of protons in an atom is its atomic number.
08:11 The total number of protons and neutrons in an atom is its mass number.
08:18 Add Protons, Neutrons and Electrons to the atom.
08:24 Observe the Symbol panel.
08:26 Note the change in name of Element, atomic number, Mass Number and charge.
08:34 Now we will move on to the Game screen.
08:36 Click on Game screen at the bottom of the interface. Four different games are available.
08:45 These games will test the knowledge gained using this simulation.
08:50 A timer and a sound button are provided at the bottom-left corner of the screen.

Click on the timer button to enable the timer before the game starts.

09:02 We can also control the sound by clicking on the sound symbol.
09:08 Click on each game screen and explore.
09:17 In this tutorial, we have learnt:

how to use Build an Atom, interactive PhET simulation.

09:24 Using this simulation, we have learnt to -

build models of Hydrogen and Helium atoms,

add or remove electrons to create ions,

add or remove neutrons to create isotopes.

09:38 As an assignment:

create a neutral oxygen atom.

09:43 Add two electrons to the neutral atom.

Observe the change in parameters on various panels.

Try to remove electrons from the inner shells, observe the results.

09:56 The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.
10:04 The Spoken Tutorial Project team: conducts workshops using spoken tutorials and gives certificates on passing online tests. For more details, please write to us.
10:18 Please post your timed queries on this forum.
10:22 This project is partially funded by Pandit Madan Mohan Malaviya National Mission on Teachers and Teaching.
10:30 Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India. More information on this mission is available at this link.
10:41 This tutorial is contributed by Snehalatha kaliappan and Meenal Ghoderao, from IIT Bombay. Thank you for joining.

Contributors and Content Editors

Madhurig, PoojaMoolya, Pratik kamble, Sandhya.np14, Snehalathak

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